INDEX. 435 



Xenodiscus, 156, 267. Zapus, 358. 



Xenoneura, 146, 282. Zarachis, 345, 



Xiphodon, 382. Zebra, 370. 



Xylobius, 151, 286. Zebu, 92. 



Yak 379 Zeuglodon, 344. 



vi, i * A Ziphius, 342, 345. 



Yellow-hammer, 70. r 



Zoarces, 294. 



Zalophus, 391. Zonites, 150, 208. 



Zamenis, 321. Zoological regions, definition of, 56. 



Zanclodon, 160. Zorilla, 390. 



Zaphrentis, 143, 151. Zygobatis, 300. 



THE END. 



PRINTED BY WILLIAM CLOWES AND SONS, LIMITED, LONDON AND BECCLES. 



